Isotridecyl Isononanoate

TL;DR. This ingredient is a lightweight emollient ester used to improve slip, cushion, and spreadability in skin care, makeup, hair care, and sunscreen formulas. It can also help dissolve oil-soluble filters, pigments, and fragrance components.

What does Isotridecyl Isononanoate do in a cosmetic formula?

This ingredient is a lightweight emollient ester used to improve slip, cushion, and spreadability in skin care, makeup, hair care, and sunscreen formulas. It can also help dissolve oil-soluble filters, pigments, and fragrance components.

Is Isotridecyl Isononanoate clean?

It has a generally low irritation and sensitization profile, with no major allergen issue in typical cosmetic use. Clean-beauty friction comes mainly from its synthetic, petrochemical-leaning origin rather than from a prominent safety controversy.

Is Isotridecyl Isononanoate sustainable?

This material is commonly made from branched synthetic alcohol and acid feedstocks, often tied to petrochemical supply chains. Its branched structure can make biodegradation less straightforward than simpler natural-origin esters, so its environmental profile is less aligned with low-persistence design.

Is Isotridecyl Isononanoate COSMOS-approved?

It is not a good fit for COSMOS-natural or COSMOS-organic formulations when made from conventional synthetic feedstocks. From a Green Chemistry view, it offers functional efficiency and low user irritation, but it is limited by non-renewable sourcing and less favorable biodegradability assumptions.

How does Isotridecyl Isononanoate work chemically?

The molecule is a branched fatty ester, which gives it low viscosity, dry slip, and good pigment-wetting behavior compared with heavier straight-chain oils. It is oil-soluble, water-insoluble, broadly stable across normal cosmetic pH ranges, and typically used in the low single digits up to higher levels in anhydrous color, sun care, or makeup systems.

Last updated 2026-05-13